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EVRINTH

Knowledge centre

Methods a laboratory can check.

Guides, method explainers and sourcing notes for research laboratories. Written by the EVRINTH Editorial Team from published methods, with catalogue links for enquiry rather than stock claims.

520 articles

Rack of flow cytometry tubes in front of a researcher viewing coloured scatter plots beside a cytometer

cytometry and microscopy

Data files FCS and image metadata

Which FCS keywords and image metadata fields to require so a cytometer run or a micrograph can be reopened and checked later.

8 October 2026 · 7 min read

Benchtop sequencing instrument with a teal status light and a flow cell cartridge in a genomics lab

dna sequencing

Data retention and who holds the raw files

Who keeps FASTQ, BAM and VCF, for how long, and what to do before a download link closes. Retention is a custody decision, not a file habit.

8 October 2026 · 8 min read

Mass spectrometer coupled to a liquid chromatography system with sample vials in the foreground

proteomics

Data-dependent and data-independent acquisition

How data-dependent acquisition picks tall precursors and data-independent windows fragment a mass range, and which choice fits discovery or a repeated panel.

8 October 2026 · 8 min read

Mass spectrometer coupled to a liquid chromatography system with sample vials in the foreground

proteomics

Database choice changes the identifications

How taxon, reviewed versus unreviewed sequences, contaminants and a custom fusion entry change proteomics identifications, and why the decoy must match.

8 October 2026 · 8 min read

Close-up of a micropipette tip releasing a droplet into a microcentrifuge tube held in a gloved hand

liquid handling

Decontamination of a pipette

Choose a pipette decontamination from the manufacturer insert, including disinfectant, UV limits, autoclave permission, and the tip ejector.

8 October 2026 · 7 min read

Visualisation of a protein complex binding a DNA double helix, representing genome editing

genome editing

Delivering editing reagents to cells

Plasmid, mRNA and ribonucleoprotein delivery change how long nuclease is present. A fluorescent marker still does not prove the locus was edited.

8 October 2026 · 9 min read

Researcher viewing gene expression heatmaps and genomic tracks on two monitors at night

gene expression

Delta-delta Cq and what it assumes

What delta-delta Cq assumes about efficiency, the calibrator and reference genes, and why the fold change is a relative comparison under those conditions.

8 October 2026 · 8 min read

Mass spectrometer coupled to a liquid chromatography system with sample vials in the foreground

chromatography

Detectors UV fluorescence and mass spec

Choose UV, fluorescence, or mass spectrometry by what each detector can report, and what it still cannot identify alone.

8 October 2026 · 7 min read

Wall-mounted water purification unit dispensing ultrapure water into a glass flask

buffers and water

Detergent stocks and bubbles

Compare ionic, non-ionic, and zwitterionic detergents by charge, cold precipitation, critical micelle concentration, and the bubbles that ruin absorbance and pipetting.

8 October 2026 · 9 min read

Mass spectrometer coupled to a liquid chromatography system with sample vials in the foreground

proteomics

Detergents salts and why they matter

Why SDS, other detergents and leftover salts suppress electrospray, which cleanup classes remove them, and how a flat ion current with a normal UV trace should be read.

8 October 2026 · 10 min read